2021 Amsterdam : CHALLENGING THE 10% WALL THICKNESS RULE FOR HDPE MARINE PIPELINES
Author(s) : Ilija Radeljic, Ebbe Smith
HDPE pipe can be relatively easily scratched during the manipulation on the site,
which is especially true for the marine pipelines. Installing the scratched marine pipe
with the S bend method presents a risk and repair methods are usually performed.
Currently, there is no standard defining the repair procedure, in...
2001 Munich : Examining the Performance of Semi-Structural Pipe Liners
Author(s) : Crunkhorn, Smith, Whiter, Mulheron
Cast iron pipes have been loaded to failure using a four point bending geometry under
displacement-controlled loading. Specimens were tested with various liner configurations :
unlined, epoxy resin lined or lined with one of two interactive (semi-structural) liners. Some
of the pipes also had a circumferential notch...
2001 Munich : Improved Performance for HDPE Pressure Pipes Used for Chlorinated Water
Author(s) : Oertli, Ifwarson
While guaranteed lifetimes of pressure pipes in use is roughly 50 years, it is commonly
accepted that a well designed and manufactured HDPE/MDPE pressure pipe would last
as long as 100 years without failures.
With ever-growing world population and intensifying pollution, it has become
increasingly difficult supplying...
1998 Gothenburg : Updating Retained Gastket Jointing Technology for PVC Pipes
Author(s) : Smith, Guzowski
Some forty years ago simple 0 ring joints for PVCu pipes were just being introduced as an alternative to solvent cemented joints. Rubber lip seal type of joints soon followed for both pressure and non pressure applications. Whilst in theory these designs were fine, both styles of joint had operational problems,...
1982 York : Extrudate Cooling of Medium Density Polyethylene Pipe Sections
Author(s) : Edwards,Ellis, Georghiades,Smith
A model is presented for the prediction of cooling rates and temperature profiles during the cooling and solidification of M.D.P.E. pipes. Experimental measurements from an industrial production line are reported and these confirm the predictions of the model. Finally, the model is used to determine the most important...